FreeCalypso > hg > freecalypso-tools
view target-utils/simtest/poll.c @ 924:d452188587b4
rvinterf: begin change to backslash escape output format
Right now throughout the rvinterf suite, any time we emit output that
is expected to be ASCII, but may contain non-printable garbage, we use
'cat -v' form of garbage character representation. Unfortunately, this
transformation is lossy (can't be reversed 100% reliably in the user's
wetware), hence we would like to migrate to C-style backslash escapes,
including doubling of any already-present backslashes - this escape
mechanism is lossless. Begin this change by converting the output
of RV and L1 traces in rvinterf and rvtdump.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Tue, 23 May 2023 03:10:50 +0000 |
parents | d96ea6ae6aa5 |
children |
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line source
#include <sys/types.h> #include <strings.h> #include "types.h" #include "simregs.h" extern int serial_in_poll(); int enable_poll; void poll_sim_rx() { u32 drx; if (SIMREGS.stat & SIM_STAT_FEMPTY) return; drx = SIMREGS.drx & 0xFF; printf("%02X ", drx); } int mygetchar() { register int c; do { if (enable_poll) poll_sim_rx(); c = serial_in_poll(); } while (c < 0); return c; } void cmd_poll(argbulk) char *argbulk; { char *argv[2]; if (parse_args(argbulk, 1, 1, argv, 0) < 0) return; if (!strcmp(argv[0], "on")) enable_poll = 1; else if (!strcmp(argv[0], "off")) enable_poll = 0; else printf("ERROR: \"on\" or \"off\" argument expected\n"); }